Listar por autor "Hernandez Fernandez, Joaquin"
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Development of a Measurement System Using Infrared Spectroscopy-Attenuated Total Reflectance, Principal Component Analysis and Artificial Intelligence for the Safe Quantification of the Nucleating Agent Sorbitol in Food Packaging
Hernandez Fernandez, Joaquin; Martinez-Trespalacios, Jose; Marquez, Edgar (Cartagena de IndiasCampus Tecnológico, 2024-04-15)Sorbitol derivatives and other additives are commonly used in various products, such as packaging or food packaging, to improve their mechanical, physical, and optical properties. To accurately and precisely evaluate the ... -
Development of an online optical prototype for the simultaneous analysis of defects or gels in industrially synthesized polypropylene films. Part 1: Comparison with ASTM D 3351–93 methods
Hernandez Fernandez, Joaquin; Ortiz, Katherine; Lopez-Martinez, Juan (Cartagena de IndiasCampus Tecnológico, 2024-04-01)Polypropylene (PP) films are crucial in various industrial applications, from packaging to medical prod ucts. However, a common challenge in PP manufacturing is the presence of gel-like defects. These gels are minor defects ... -
Multiple Traces of Families of Epoxy Derivatives as New Inhibitors of the Industrial Polymerization Reaction of Propylene
Hernandez Fernandez, Joaquin; Ortega-Toro, Rodrigo; Castro-Suarez, John R. (Cartagena de IndiasCampus Tecnológico, 2024-07-21)In this study, the impact of ethylene oxide, propylene oxide, 1,2-butene oxide, and 1,2- pentene oxide on the polymerization of propylene at an industrial level was investigated, focusing on their influence on the catalytic ... -
Quantification of Irgafos P-168 and Degradative Profile in Samples of a Polypropylene/Polyethylene Composite Using Microwave, Ultrasound and Soxhlet Extraction Techniques
Hernandez Fernandez, Joaquin; Pérez Mendoza, Jaime; Ortega-Toro, Rodrigo (Cartagena de IndiasCampus Tecnológico, 2024-04-21)In polypropylene/polyethylene composite (C-PP/PE) production, stabilizing additives such as Irgafos P-168 are essential as antioxidant agents. In this study, an investigation was carried out that covers different ... -
Recovery of an Antioxidant Derived from a Phenolic Diphosphite from Wastewater during the Production of a Polypropylene Compound: A Step towards Sustainable Management
Hernandez Fernandez, Joaquin; Bello-Leon, Elias; Carrascal, Juan (Cartagena de IndiasCampus Tecnológico, 2024-06-11)Organic phosphoester (OPE) antioxidants are currently required due to their contribution to enhancing the quality of polymers, including polypropylene (PP). In this research, an integral methodology is presented for the ... -
Sustainable Catalysts from Industrial FeO Waste for Pyrolysis and Oxidation of Hospital Polypropylene in Cartagena
Hernandez Fernandez, Joaquin; Carrascal Sanchez, Juan; Lopez Martinez, Juan (Cartagena de IndiasCampus Tecnológico, 2024-07-11)During the COVID-19 pandemic, polypropylene waste generated in hospitals increased significantly. However, conventional strategies for the final disposal of environmental waste, such as incineration, proved inefficient ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.